multidimensional array array_sum

Question

I have seen various posted about this question so am aware some answers to this may exist. however I am none the wiser after reading these.

I have an array that is

Answer 1

You could use array_map first to collect the vatAmout value.

$sum = array_sum(array_map(function($var) {
  return $var['vatAmout'];
}, $account_invoices));